Self-acting melter.



No. 666,4sp. Y Patented 1an. 22, 190|. G. a. u. PALAZZI & v. PlvETTA.

' SELF ACTING MELTER.

(No una (Application filed Apr. 7, 1900.)

WLM/d1. wawn, l

and Fig. 2 is a sectional.

` exit pipe, which is bent 4upward.within the' ord i nary mouthblowpipes4 `inenting-tube cZ-and the standard e.

.steam-pipe is inclosed within the gas-conduct- Vto allow ot the. device GUIDO PALAZZI, Ueo PALAZZI,

PATENT OFFICEa SELF-ACTING IVI ELTER.

SPECIFICATION forming part of Letters P atent No. 666,481, dated January 22, 1901.

Application iiledApril '7, 1,900.l Serial No`.11,975. (No model.)

To /ZZ whom it 'ntrrfycmwerm Be it known that we, GUIDO PALAZZI, Ueo PALAZZI, and VITTORIO PIVETTA, residing'at Naples, in the Province of Naples, Kingdom oi' Italy, have invented certain nevi;r and useful Improvements in Self-Acting Melters, ofwhich the following is a specification.

The present invention relates to a self-acting melter and solderer in which the flame is sustained 'by a jet ofV steam.

Our invention is to be used in -lieu of the or the b lowpipes wherein a blast o'f` airis generated by bellows.

In order to betterunderstand the 'nature of the invention, attention 'is called 4to the accompanying drawings, in whic h;V A Y Figure l is a side view of the apparatus, View of the steam and gas exits. A

In bot-h views like partsare designated by the saine lletters of reference.

he gas issues from the-supply-tub'e a. The latter is joined to the conduit c by meansof the coupling-b. A smaller pipe f is supported above and yparallel to the conduit by the con? The regulating-valves g andgz4 are arranged within the conduit c and tubef, respeetively. Pointers h' and h2, carried bythe movable member of the valve, serve toindieate the degree ot' aperture and controlthe flow of gas,

' The burners Z Z, Waterinthe boiler m, The boiler is provided at its upper part Iwit a manhole n, having a screw-cover, 'and Valso are carried by the pipe f.

with a safety-valve o. A level-cock .pand a discharge. or blow-oifcocl; q are, provided.

At one end of the boilerisseenred the steanrl boiler, as shown in' Fig. 2, and extends in the upper 4part of the saine, as is usual in such connections. The steam-exit pipeis inclosed at its exit withina coupling-box r, which also eceives the coupling of the gas-conduit c.

From the coupling-box rto the burner s the ing tube, and both together are enveloped by the larger tube Z. Legs u and o serve to sup port the entire apparatus in a horizontal po. sition. The joints and couplings are arranged beingdisman'tled when desired.

,extremity of the larger the boiler, the minimum that once in function on the gas,`and a which serve to heat the The operation of the apparatusfis as follows: The boiler is charged with a sufficient quantity of Water through the manhole n, the

level being indicated bythe water o'Wi-ng out of thecock p, which is kept open for this purpose. The cock is then' closed. Steam is generated by means of theburners Z Z',- the heat f rom which' is regulated by means of the valve g2. The steam flows out at s', and as its strengthis considered suficient the apparatus is placed near the welter-pot, and the valve g'- first being opened the issuing gas is ignited. A sufficient quantity 'of air to 'make the proper mixture is .drawn on the injector principle through the several small openings shown adjacent to the outer tube Z'. The proper amount of water is always maintained within level being indicated by means of the cockq. The valve g? serves to regulate the flames issuing from the burners Z Z and to some extent the 4force of the escap-v ing steam.

This apparatus greatly facilitates the melting, inasmuch as it renders unnecessary the blowing of the bellows by aworkman, and works, automatically. It further elects a saving vof fty percent.

few"min`utes are sufcient to melt from onel grains of gold or silver or other alloys u'sed in this trade.

i Having thus particularly described and ascertained the nature of our invention, what h .we claim, and desire to secure by Letters `Patent, is

-Anapparatus ,for melting by means of gas and steam, comprising a boiler, a steam-'outlet thereto, a gas-conduit, ,an .exit thereto surrounding the steambutlet and a shunt, burners'therein adjacent to the boiler, and a valve on the conduit and an independ ent valve on the shunt for regulating the burners, substantially as set forth.

In testimony that we claim the 4ioregoin g as our invention wehave signed our names in presence of two subscribing Witnesses'.l

GUIDO PALAZZI. `UGO PALAZZI.

VITTORIO PIVETTA.

Witnesses:

` W. BENEDETTI,

A. RAGGI.

hundred to two hundred AND VITTORIO PIVETTA, OF NAPLES, ITALY. 

